Home / 515,578,331.63-773,346,524.10-127,391,386.61

Finding the Fourth Proportional to 515,578,331.63, 773,346,524.10 and 127,391,386.61

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Solution

The fourth proportional to 515,578,331.63, 773,346,524.10 and 127,391,386.61 is: 191,081,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,578,331.63 : 773,346,524.10 = 127,391,386.61 : x
  2. Step 2: Convert to fraction form
    515,578,331.63/773,346,524.10 = 127,391,386.61/x
  3. Step 3: Cross multiply
    515,578,331.63x = 773,346,524.10 × 127,391,386.61
  4. Step 4: Simplify right side
    515,578,331.63x = 98,517,686,031,256,048
  5. Step 5: Solve for x
    x = 98,517,686,031,256,048/515,578,331.63
  6. Step 6: Final answer
    x = 191,081,897.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.